Fluocerite-(La)
Fluocerite-(La) is an IMA-recognized mineral species in the halide class, with the chemical formula LaF₃.
It crystallizes in the hexagonal crystal system (space group P-3c1). It is a member of the Fluocerite structural group.
Key properties: Mohs hardness 4–5; specific gravity 5.93; Vitreous luster; optically uniaxial.
IMA symbol Fcrt-La, IMA status: approved, named in 1969.
Found in hydrothermal quartz veins in granite.
It is found associated with Quartz.
As the lanthanum analog of fluocerite-(Ce).
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet.
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